High pressure tight shutoff valve seal

Details High pressure tight shutoff valve seal High pressure tight shutoff valve seal

1974-08-01

1976-06-01

Rosenthal, Arnold

Valves and valve actuation

Sequential opening or closing of serial ports in single flow...

251332, F16K 2500

Patent

active

039603644

ABSTRACT:
A tight shutoff valve seal is disclosed, wherein an easily deformable annular valve seal member is retained within an annular groove in a valve element. Protecting this seal member from erosion or damage by a fluid flowing therepast is a slidable seal retaining member which additionally retains the seal member within the groove. The retaining member is resiliently urged to a seal-protecting position when a valve employing this seal is opened, and when the valve is closed the retaining member slides on a surface of the seal member and on a surface of the valve element to allow the seal member to abut and seal against a valve seating surface.

REFERENCES:
patent: 2830620 (1958-04-01), Shuptrine
patent: 2885176 (1959-05-01), Bryant
patent: 3327991 (1967-06-01), Wallace

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